Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Gross Anatomy & Kinesiology Lecture > Chpt. 10. Knee > Flashcards

Chpt. 10. Knee Flashcards

1
Q

Knee is what kind of a joint?

A

Ginglymus (Hinge joint)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Tibia-medial bears most of the ___ ?

A

weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Fibular-lateral serves as the ____ for the knee joint structures?

A

the Attachment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Is the Patella femoral a true joint?

A

NO

-not true synovial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What time of bone is the patella?

What does it act as?

A

Sesamoid (floating) bone

-pulley in improving angle of pull== resulting in greater mechanical advantage in Knee EXTENSION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are 6 bony landmarks on the knee?

A
  • Superior & inferior patellar poles
  • Tibial tuberosity
  • Gerdy’s tubercle
  • Medial & lateral femoral Condyles
  • Upper anterior medial tibial surface
  • Head of fibula
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

___ vasti muscles of quads originate on proximal femur & insert on ________ ______ ____

-The insertion ultimately is on ____ via patella tendon (ligament)

A
  • 3

- patellar superior pole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where does the Iliotibial tract of tensor fasciae latae inserts on ?

A

-Gerdy’s tubercle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where does Sartorius, gracilis, & semitendinosus insert ?

A

Pes anserinus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where is the Pes anserinus?

A

below the medial condyle on upper anteromedial tibial surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Where does the Bicep femoris insert?

A

on Fibula head

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is another name for Knee joint?

A

tibiofemoral joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Does the PCL often get injured?

How would an injury occur on the PCL?

A

No

-direct contact with an Opponent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Does the LCL frequently get injured?

A

no, infrequently

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How does the MCL maintain stability?

What is Valgus Force?

A

by resisting valgus forces or preventing knee from being abducted

-outside to inside force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Are MCl injuries common? And how do they usually occur?

A

Yes, usually in contact or collision sport

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is a Infrapatellar fat pad?

A

an insertion point for synovial folds of tissue known as “plica”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The Infrapatellar fat pad can be _____, pinched or ______ with injuries or over use of the knee and then is called what?

A
  • irritated, pinched or inflammed

- Plica Syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How many bursaes around the knee?

What is the function?

A
  • more than 10 in and around knee

- absorb shock or prevent friction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

??Name 3 bursae around the knee

A
  • suprapatella bursae
  • infrapatella bursae
  • subcutaneous prepatellar/infrapatellar bursae
21
Q

?What degrees does the knee extend?

A

180 degrees (o degrees of flexion)

22
Q

Is it uncommon to have hyperextension?

How many degrees?

A

No, 10 degrees

23
Q

How much degrees for knee flexion?

A

140

24
Q

When the knee approaches full extension the tibia needs to do what to properly align tibial and femoral condyles?

A

externally rotate

25
Q

Ligaments are tight in what position?

A

full extension

26
Q

The knee does what when moving from its externally rotated position into flexion?
“unlocks the knee”

What unlocks the knee?

A

tibia rotated internally to a degree

-Poplitius

27
Q

Does ECCENTRIC or CONCENTRIC generate more force?

A

ECCENTRIC

28
Q

Do Quads or Hamstrings have more strength? and how much % ?

A

Quads;

about 25-33% more

29
Q

What 4 muscles do the Quads consist of?

A
  • rectus femoris
  • vastus lateralis
  • vastus intermedius
  • vastus medialis
30
Q

What 3 muscles do the Hamstrings consist of?

and one extra?

A
  • semitendinosus - medial, internal rotator
  • semimembranosus - medial, internal rotator
  • biceps femoris (long and short) - lateral, external rotator

*-Popliteus- assist medial, internal rotation

31
Q

are 1 joint or 2 joint muscles more likely to be torn?

A

2-joint muscles

32
Q

Hamstring muscles & rectus femoris are _____ muscles

A

biarticular (two-joint)

33
Q

What are the synergists ANTERIORLY for Knee extension (4):

A
  • Rectus femoris
  • Vastus medialis
  • Vastus intermedius
  • Vastus lateralis
34
Q

What are the synergists primarily for Knee flexion POSTERIORLY (7):

A
  • Biceps femoris (long head)
  • Semimembranosus
  • Semitendinosus
  • Popliteus
  • Sartorius
  • Gracilis
  • Gastrocnemius
35
Q

Knee EXTENSION occurs from Quads or Hamstrings?

A

Quads

36
Q

Knee FLEXION occurs from Quads or Hamstrings?

A

Hamstring

37
Q

Femoral nerve innervates which muscles? (Quads)

4

A
  • rectus femoris
  • vastus medialis
  • vastus intermedius
  • vastus lateralis
38
Q

Sciatic nerve innervates which muscles ? (3)

A
  • semitendinosus,
  • semimembranosus
  • biceps femoris (long head)
39
Q

What muscles does the Common Peroneal (fibular) innervate?

A

-bicep femoris (short head)

40
Q

What muscle is vital in jumping?

-what 2 functions of this muscles?

A

quads; functions as decelerator

  • when decreasing speed to change direction
  • when coming down from a jump
41
Q

Strength and Endurance is essential for maintenance of what muscle stability?

A

Patellofemoral

42
Q

What is the OINA for Rectus Femoris?

A

O: AIIS
I: Tibial tuberosity
N: Femoral
A: Extension of knee, flexion hip

43
Q

What is the OINA for Vastus Lateralis?

A

O: Upper ½ of linea aspera (line backf of femur)
I: Tibial tuberosity
N: Femoral
A: extend knee

44
Q

What is the OINA for Vastus Intermedius?

A

O: upper part of Femur
I: Tibial tuberosity
N: Femoral
A: extend knee

45
Q

What is the OINA for Vastuc Medialis?

Same as Vastuc Lateralis

A

O: Linea aspera
I: Tibial tuberosity
N: Femoral
A: Extend knee

46
Q

What is the OINA for Popliteus?

what nerve*

A

O: Lateral condyle femur (back)
I: Proximal tibia (back)
N: Tibial nerve
A: weakly flex knee, internally rotate tibia, (“unlocking”= internally rotate tibia)

47
Q

What are the synergists for Knee flexion?

A
  • Biceps Femoris (Long Head)
  • Semitendinosus
  • Semimembranosus
48
Q

What is the synergist for INTERNAL rotation?

A
  • Popliteus
  • Semitendinosus
  • Semimembranosus
49
Q

What is the synergist for EXTERNAL rotation?

A

Bicep femoris

Gross Anatomy & Kinesiology Lecture (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions